WEKO3
アイテム
水中音響通信におけるパワー変調により通信量を2倍にする二次元OFDMシステム
https://doi.org/10.18997/0002000943
https://doi.org/10.18997/00020009437d5d327e-ae05-4b39-aa60-b7713a923124
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
sei_k_485.pdf (8.5 MB)
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| アイテムタイプ | 学位論文 = Thesis or Dissertation(1) | |||||||
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| 公開日 | 2024-09-03 | |||||||
| 資源タイプ | ||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||||
| 資源タイプ | doctoral thesis | |||||||
| タイトル | ||||||||
| タイトル | 2-D OFDM System using Subcarrier Power Modulation to Double the Data Rate in Underwater Acoustic Communication | |||||||
| 言語 | en | |||||||
| タイトル | ||||||||
| タイトル | 水中音響通信におけるパワー変調により通信量を2倍にする二次元OFDMシステム | |||||||
| 言語 | ja | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| 著者 |
Hussam, Alraie
× Hussam, Alraie
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| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | Underwater communication is one of the most important and difficult challenges facing researchers due to the high attenuation of the signal, communication with the surface because of the harsh medium of water, and data transmission performance degradation because of various effects. Underwater acoustic communication (UWA) has a low data rate, which describes the disadvantage of this type of communication. In addition, it has a low bandwidth range and high latency but has a long transmission range as an advantage. Multicarrier wireless transmission systems increase the data rate by sending the data using more than one carrier. We proposed a noncoherent orthogonal frequency division multiplexing (OFDM) method to increase the data rate in UWA communication systems. In addition, doubling the data rate in the OFDM using Subcarrier Power Modulation (OFDM-SPM) system can save half of the bandwidth. The MATLAB simulation program was used to implement the system in the underwater acoustic environment to increase its throughput. The proposed design uses Differential Phase Shift Keying (DPSK) with power control, and the data stream is transmitted through two-dimensional modulation schemes, the DPSK, and the power level of each subcarrier in the OFDM system with cyclic prefix (CP). The underwater channel was designed using a Rician fading multipath with a spreading loss formula as a function of distance and frequency. The research is based on three steps, the first of which is research on the underwater communication environment, simulating this environment with the proposed method to double the data rate, and implementing this method through practical experiments. |
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| 目次 | ||||||||
| 内容記述タイプ | TableOfContents | |||||||
| 内容記述 | 1 Introduction and Related Work| 2 Underwater Acoustic Channel and OFDM-SPM| 3 Results and Discussions| 4 Conclusion and Future Work | |||||||
| 備考 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 九州⼯業⼤学博⼠学位論⽂ 学位記番号：生工博甲第485号 学位授与年⽉⽇: 令和6年3⽉25⽇ | |||||||
| 学位授与番号 | ||||||||
| 学位授与番号 | 甲第485号 | |||||||
| 学位名 | ||||||||
| 学位名 | 博士（工学） | |||||||
| 学位授与年月日 | ||||||||
| 学位授与年月日 | 2024-03-25 | |||||||
| 学位授与機関 | ||||||||
| 学位授与機関識別子Scheme | kakenhi | |||||||
| 学位授与機関識別子 | 17104 | |||||||
| 学位授与機関名 | 九州工業大学 | |||||||
| 言語 | ja | |||||||
| 学位授与年度 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 令和5年度 | |||||||
| 出版タイプ | ||||||||
| 出版タイプ | VoR | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||
| アクセス権 | ||||||||
| アクセス権 | open access | |||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||
| ID登録 | ||||||||
| ID登録 | 10.18997/0002000943 | |||||||
| ID登録タイプ | JaLC | |||||||
